Loft InsulationInstallers

Loft insulation in Hampshire

Loft insulation, top-ups, boarding, hatches, ventilation and surveys across Hampshire.

We work in Southampton, Portsmouth, Basingstoke, Gosport and Waterlooville and everywhere in between.

Loft insulation from £495 Hampshire
An insulated loft hatch in a landing ceiling

Loft services in Hampshire

Insulate the loft

Boarding, hatches and ladders

Remove and replace

Ventilation and frost protection

Surveys and funding checks

Homes and buildings

Where we work around Hampshire

Council areas covered: Hampshire, Portsmouth and Southampton.

Postcodes starting BH, GU, PO, RG, SO and SP are all inside our area.

CouncilsHampshire, Portsmouth and Southampton
Postcode areasBH, GU, PO, RG, SO, SP

Loft insulation in other towns

Building regulations in England

Insulating a loft is treated as renovating a thermal element when more than half of the ceiling area is insulated. Approved Document L sets a target U-value of 0.16 W/m²K, which is around 250 to 300 mm of mineral wool. Loft insulation on its own usually does not need a building notice, but it still has to meet that standard. Rafter insulation that forms part of a loft conversion is notifiable building work.

Funding in England

  • ECO4, the energy supplier scheme, runs until 31 December 2026 for eligible households, with no supplier scheme to follow it.
  • The Great British Insulation Scheme closed on 31 March 2026.
  • The Warm Homes Plan, announced in January 2026, funds upgrades for low-income households, including through councils under Warm Homes: Local Grant.
  • Check what is open for your address on GOV.UK before agreeing to any funded offer.

GOV.UK: find ways to save energy in your home

Rented homes

Privately rented homes in England must have an EPC rating of at least E, and the government has confirmed that all tenancies in scope must reach band C by 1 October 2030, measured with updated EPC metrics.

The Energy Saving Trust puts a typical professionally installed loft at about £750 from bare joists, or £600 to top up from 120 mm.

Questions about loft insulation in Hampshire

Are your prices the same across Hampshire?

Yes. Our guide prices are the same everywhere we work, and they include normal travel. Your fixed price depends on your loft, not your postcode.

How do I book a survey in Hampshire?

Send the form or call us. We call back to agree a time and confirm it in writing.

Do you cover the whole of Hampshire?

Yes. We cover every town and village in Hampshire, including Southampton, Portsmouth and Basingstoke.

Which council covers my address in Hampshire?

Councils in Hampshire include Hampshire, Portsmouth and Southampton. Your council matters for building control questions and some funding schemes.

Find out what your loft needs

Free survey and a fixed written quote for installation work. Guide prices first if you prefer.